Effects of spin-exchange collisions on the fluctuation spectra of hot alkali-metal vapors
arXiv:2204.08748 · doi:10.1103/PhysRevA.106.023112
Abstract
We present a first-principles analysis of the noise spectra of alkali-metal-metal vapors in and out of the spin-exchange-relaxation-free (SERF) regime, and we predict non-intuitive features with a potential to further improve the sensitivity of SERF media, and which must be taken into account in their use in quantum optical applications. Studying the process of spin-noise spectroscopy (SNS), we derive analytic formulas for the observable noise spectra, and for the correlation functions among different hyperfine components, which give additional insight into the spin dynamics. The analytic results indicate a variety of distortions of the spin-noise spectrum relative to simpler models, including a broad spectral background that mimics optical shot noise, interference of noise contributions from the two ground-state hyperfine levels, noise reduction at the spin-precession frequency, and ``hiding'' of spin-noise power that can introduce a systematic error in noise-based calibrations, e.g., for spin-squeezing experiments.
References in corpus (37)
- Optical Magnetometry
- Quantum interface between light and atomic ensembles
- Experimental long-lived entanglement of two macroscopic objects
- Quantum teleportation between light and matter
- Quantum noise limited and entanglement-assisted magnetometry
- Limits on new long range nuclear spin-dependent forces set with a K-3He co-magnetometer
- Portable magnetometry for detection of biomagnetism in ambient environments
- High Bandwidth Atomic Magnetometery with Continuous Quantum Non-demolition Measurements
- Generation of a squeezed state of an oscillator by stroboscopic back-action-evading measurement
- Search for topological defect dark matter with a global network of optical magnetometers
- Measurement-induced nonlocal entanglement in a hot, strongly-interacting atomic system
- Global Network of Optical Magnetometers for Exotic (GNOME): Physics Novel scheme for exotic physics searches
- New limits on Anomalous Spin-Spin Interactions
- Simultaneous tracking of spin angle and amplitude beyond classical limits
- Generation of macroscopic singlet states in a cold atomic ensemble
- Squeezed-light spin noise spectroscopy
- Femtotesla direct magnetic gradiometer using a single multipass cell
- Stroboscopic back-action evasion in a dense alkali-metal vapor
- Generation of macroscopic singlet states in atomic ensembles
- Signal tracking beyond the time resolution of an atomic sensor by Kalman filtering
- Strong coupling of alkali spins to noble-gas spins with hour-long coherence time
- Quantum atom-light interfaces in the gaussian description for spin-1 systems
- Feedback-cooling of an atomic spin ensemble
- Probing spatial spin correlations of ultracold gases by quantum noise spectroscopy
- Quantum interface for noble-gas spins based on spin-exchange collisions
- Coherent coupling of alkali atoms by random collisions
- Quantum Dynamics of Collective Spin States in a Thermal Gas
- Correlation function of spin noise due to atomic diffusion
- Three-dimensional light-matter interface for collective spin squeezing in atomic ensembles
- Nuclear spin squeezing in Helium-3 by continuous quantum nondemolition measurement
- Spin-noise correlations and spin-noise exchange driven by low-field spin-exchange collisions
- Sensitivity, quantum limits, and quantum enhancement of noise spectroscopies
- Nonlinear Elimination of Spin-Exchange Relaxation of High Magnetic Moments
- Bose-Einstein Condensate Comagnetometer
- Efficient Data Averaging for Spin Noise Spectroscopy in Semiconductors
- Zero-field spin noise spectrum of an alkali vapor with strong spin-exchange coupling
- Synchronization of strongly interacting alkali-metal spins
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- Multiparameter quantum sensing and magnetic communications with a hybrid dc and rf optically pumped magnetometer
- Inter-species spin-noise correlations in hot atomic vapors
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- Anomalous noise spectra in a spin-exchange-relaxation-free alkali-metal vapor
- Cavity-enhanced detection of spin polarization in a microfabricated atomic vapor cell
- Suppressing the Decoherence of Alkali-Metal Spins at Low Magnetic Fields
- Magnetic-field-independent spin-exchange relaxation-free magnetometer
- Optimized experimental optical tomography of quantum states of room-temperature alkali-metal vapor
- Anomalous high-density spin noise in a strongly interacting atomic vapor
- Optical protection of alkali-metal atoms from spin relaxation
- Optimal and efficient inference tools for field tracking with precessing spins